Medical:
* "High altitude climbers are at risk of hypoxia, which can cause dizziness, headaches, and even unconsciousness."
* "The doctor diagnosed the patient with hypoxia due to a lung infection."
Environmental:
* "The polluted water caused hypoxia in the lake, killing off many fish."
* "Climate change is contributing to hypoxia in the oceans, threatening marine life."
Scientific:
* "Hypoxia is a condition of oxygen deficiency in the body's tissues."
* "Researchers are studying the effects of hypoxia on brain function."
Figurative:
* "The city felt like a suffocating, hypoxic environment where creativity struggled to breathe."
Remember: "Hypoxia" is a technical term, so use it when referring to a specific situation related to oxygen deficiency.